paths_index: Compute index value for many histories.

In tourr: Tour Methods for Multivariate Data Visualisation

Compute index value for many histories.

Description

This is a convenience method that returns a data frame summarising the index values for multiple tour paths.

Usage

paths_index(bases_list, index_f)

Arguments

bases_list	list of histories produced by save_history
index_f	index function to apply to each projection

Examples

# The max.tries is low for satisfying CRAN checks
# Increase it for using in practice
holes1d <- guided_tour(holes(), 1, max.tries=2)
# Perform guided tour 5 times, saving results
tries <- replicate(5, save_history(flea[, 1:6], holes1d), simplify = FALSE)
# Interpolate between target bases
itries <- lapply(tries, interpolate)

paths <- paths_index(itries, holes())
head(paths)

if (require(ggplot2)) {
  ggplot(data = paths, aes(x=step, y=value, group = try)) + geom_line()
  ## ggplot(data = paths, aes(x=step, y=improvement, group = try)) + geom_line()
}

tourr documentation built on Aug. 25, 2023, 1:08 a.m.